Turbo blower



Aug. 2, 1927. 1,637,474

c. w. DAKE TURBO BLOWER Filed April 6, 1926 5 Sheets-Sheet IL INVENTOR c. w. DAKE TURBO BLOWER Aug. 2, 1927.

Filed April s, 1926 5 Sheets-Sheet 2 INVENTOR fiarZe/fi 74. 17

ATTORNEYS C. W. DAKE TURBO BLOWER Aug. 2 1927.

Filed April 5. 192a SSheets-Sheet 5 INVENTOR U/ZQTZfi Wfiaie Y WM ATTORNEYS C. W. DAKE Aug. 251927.

TURBO BLOWER Filed April 5, 1926 5 Sheets-Sheet 4 Aug. 2, 1927.

C. W. DAKE TURBO BLOWER 5 Sheets-Sheet 5 Filed April 5. 1926 INVENTOR 67zczrZe; Wfla/Ze ATTORNEYS Patented Aug. 2, 1927.

UNITED STATES CHARLES W. DAKE, OF CHICAGO, ILLINOIS.

TURBO BLOWER.

Application filed April 5, 1826. Serial No. 99,780.

My invention relates to improvements in turbo blowers and has for one object to provide a new and improved form of steam turbine driven air or exhaust gas blower combination. My invention is exemplified in a turbo blower adapted to be used in locomotive practice for providing a forced draft but it will be obvious that the combination and arrangement might be used in any condition where steam power is available and it is desirable to use it to drive a fan or blower.

Other objects will appear from time to time F. of Figure 3.

Like parts are indicated by like characters throughout the specification and drawings- A is a bed plate or base. It may be and in this case is a part of the wall of a locomotive boiler. A is the blower housing. It is flanged at A and held by means of the studs A in place on the bed plate A. In this case the bed plate is apertured as at A to permit products of combustion from the furnace to pass up through the aperture A into the body of the blower housing. The upper extremity of 1 the housing A is interiorly flanged as at A and exteriorly flanged as at A. A is the exhaust passage and integral with the housin A through which the burnt gases are disc arged into the pipe A. It will be noted that this housing is gradually expanded from the point A around the periphery of the housing to the large discharge passage A in the usual manner.

superposed on the fan housing A is the turbine housing B, flanged at B to engage the housing A adapted to be held thereon by means of the studs B This housing is open at the bottom in register with the opening through the flange A and closed at the top by a flat wall B with a centrally disposed boss B which boss terminates in an interiorly and outwardly extending sleeve B. B is the steam supply pipe discharging into the turbine housing. B is the exhaust steam discharge pipe leading tangentially therefrom and leading to the exhaust main B C is a stub bearing shaft held in lace rigidly in the sleeve B by means 0 the castellated nut C the shoulder C and the key C This stub shaft extends down into the space enclosed by both the turbine housing and the blower housing. It is flanged at C to engage the large upper ball bearing C and shouldered at C? to engage the lower smaller ball bearing C. The nut C holds the lower ball bearing in place a ainst the shoulder at C at the lower end 0 the stub shaft. C is a bearing housing sleeve shouldered at its inner and outer ends as indicated to engage respectively the bearings C and C. It is closed at its lower end by the cap G there being clearance between the cap (3 and the bearing C so that if the distance between the upper and lower shoulders C should increase by expansion the lower shoulder might pull away from the bearing C without interfering with the continued operation of the parts.

The member C is flanged at D to substantially close the opening in the boss 13*. This flange terminates in a mitered surface inopposition to a i'nitered surface D on the flange D 'interiorly disposed about the periphery of the boss B D is a packing flange encircling the shaft C provided with a packing ring D. This flange has a shoulder D adapted to engage the races of the ball bearin C and is held in place by means of t e cap screws D The bearing Q is free to move upwardly along the shaft C away from the shoulder C so that if expansion of the member C takes place the parts may rise above the shoulder C without harm being done. The space within the member C between-it and the shaft C and enclosing the two bearings is adapted to be filled with lubricant to lubricate the ball bearings.

between the two housings.

ings. There is a flan e extending beyond and overhanging the ange .A" as at E 'to carry the turbing rotor buckets E which are held in place 'by means of a shroud'E and rivets E extending through the flange E through each bucket and through the shroud. Extending downwardly from the runner E are a plurality of blower buckets E These buckets are riveted to the underside of the runner and riveted at their lower extremity to a shroud E whereby they form a cageopen at the bottom of the intake end of the blower adapted to discharge radially into the space between the rotor and the housing in the usual manner.

E is a bearing flange on the inne'r upper side of the runner adapted to engage a cylindrical bearing surface on the outside of the member'C". Extending upwardly from' this bearing surface is a conical sleeve E which terminates at its upper end in a flange E adapted to be held onto the flange D by means of cap screws E and which also has a bearingsurfaceE adapted to engage. a corresponding bearlng surface on the upper end of the member C whereby the rotor or runner and its associated parts may be removably "mounted on the bearing hub whereby a dead air space may be interposed between the bearing hub and the walls of the runner heated in part by the exhaust or burnt gas from the engine vand in part by the steam itself.

The steam pipe B discharges into a steam chest F disposed in the wall of the turbine housing. This steam chest F has at either end a downwardly extended branch F Each of ,the branches communicates with a steam pocket]? closed by a cap F and in line with a removable steam nozzle F which nozzle expands the steam and discharges it against the turbine buckets in the usual manner, the steam being discharged radially. Opposed to the inner periphery .of the turbine, wheel and opposed nozzles F are two pairs of return passages F F which gather the, steam after it has passed through the buckets and discharge it again intO the buckets at a point further along the wheel. These return passages are contained within return passage blocks F mounted on brackets F bolted to the underside of the top of the housing as at F. The steam after being discharged by the return passages against the buckets passes out of the buckets outside the turbine wheel and thence to the exhaust as indicated. Since there is a free flow of exhaust or steam out of the housing and since there is a free flow of gas out of the blower housing, it is not necessary to have a gas or steam tight wall. interposed harm would be done if there was some mixture of the steam and theburnt ga es because in either event they are sent out to No particular the atmosphere or to the exhaust just as I rapidly as possible.

I claim: 1. In a turbo blower having turbine and blower housings, a rotor interposed between and forming a partition between them, and

and forming a partition between them, and

a bearing support for the rotor mounted on the wall of the turbine housing, extending therethrough and into but out of contact with the blower housing, the rotor being removably mounted on the bearing support.

3. In a turbo blower having turbine and blower housings, a rotor interposed between and forming a partition between them, and a bearing su port for the rotor mounted on the wall of t e turbine housing, extending through and into but out of contact with the blower housing, the rotor being removably mounted on the bearing support, there being a dead air space between the rotor and the bearing support.

4. A hearing for turbines and the like comprising a rigidly mounted stub shaft, a

pair of self-contained bearing members carried thereby, a sleeve mounted on the members enclosing them andfree to rotate with them on the shaft, the sleeve being closed at one end and packing means interposed at the other end surrounding the shaft to enclose the sleeve the bearing members being each removable as a unit from the sleeve and from'the shaft.

5. A bearing for turbines and the like com.- prising a rigidly mounted stub shaft, a pair of self-contained bearing members carried thereby, a sleeve mounted on the members enclosing them and free to rotate with them on the shaft, the sleeve being closed at 'one enda-nd packing means interposed atthe on the shaft, the sleeve being closed at one end and packing means interposed at the other end surrounding the shaft to enclose the sleeve, aqrotor-comprising a rotating late and a sleeve adapted to surround the earing sleeve and be removably mounted thereon, and a dead air space interposed between the two sleeves the bearing members being each removable as a unit from the sleeve and from the shaft.

7. In a turbine, a housing, a stub end shaft rigidly mounted on the end thereof and projecting into the housing, a bearing on the end of the shaft, the inner race of which is rigidly positioned thereon, a bearing intermediate the ends of the shaft, the inner race of which is free to move away from the first bearing, the shaft being flanged to prevent movement of the races toward said bearing, a sleeve shouldered to engage the adjacent sides of the two bearings, the sleeve being free to move upwardly away from the upper bearing and means for holding the sleeve rigidly with respect to the outer race of the upper bearing.

8. In a turbine, a housing, a stub end shaft rigidly mounted on the end thereof and projecting into the housing,- a bearing on the end of the shaft, the inner race of which is rigidly positioned thereon, a bearing inter mediate the ends of the shaft, the inner race of which is free to move away from the first bearing, the shaft being flanged to prevent movement of the races toward said bearing, a sleeve shouldered to engage the adjacent sides of the two hearings, the sleeve being free to move upwardl away from the upper bearing and means or holding the sleeve rigidly with respect to the outer race of the upper bearing, a cap closing the sleeve at its lower end, and overlying the end of the shaft, a packing disc encircling the shaft, closing the upper end of the sleeve and seated rigidly against the'upper bearing and a packing ring interposed between the disc and the shaft 1 9. In a turbine, a housing, a stub .end shaft rigidly mounted on the end thereof and projecting into the housing, a bearing on the end of the shaft,-the inner race of which is rigidly positioned thereon, a bearing intermediate the ends of the shaft, the inner race of which is free to move away from the first bearing, the shaft being flange-d to prevent movement of the races toward said bearing, a sleeveshouldered to engage the adjacent sides of the two bearings, the sleeve being free to move upwardly away from the upper bearing and means for holding the sleeve rigidly with respect to the outer race of the upper bearing, a cap closing the sleeve at its lower end, and overlying the end of the shaft, a packing disc encircling the shaft, closing the upper end of the sleeve and seated rigidly against the upper bearing and a packing ring interposed between the disc and the shaft, a turbo blower'rotor comprising a conical runner plate enclosing the lower end of thebearing sleeve, the sleeve extending upwardly from said plate and encircling the bearing sleeve and removably attached thereto at its upper end, the periphery of the runner being located in a plane intermediate the two bearings.

10. In a turbine, a shaft,- a sleeve mounted for rotation upon and enclosing one end of the shaft, bearings interposed between the sleeve and the shaft, a rotor removably mounted on the sleeve comprising a conical plate, a sleeve extending rearwardly from the cone and enclosing the bearing sleeve, the apex of the cone forming .with said sleeve a housing for the bearing sleeve the bearing members being each removable as a unit from the sleeve and from the shaft.

11. In a turbine, a shaft, a sleeve mounted for rotation on and enclosing one end of the shaft. bearings interposed between the sleeve and the shaft, a rotor plate, a sleeve project ing therefrom, and reniovably mounted on the bearing sleeve and enclosing it the bearing members being each removable as a unit from the sleeve and from the shaft.v

Signed at Chicago, county of Cook and State of Illinois, this 25th day of March, 1926.

CHARLES W.- DAKE. 

